55101506550 has 48 divisors (see below), whose sum is σ = 141363876240. Its totient is φ = 14187053440.

The previous prime is 55101506519. The next prime is 55101506561. The reversal of 55101506550 is 5560510155.

It is a super-3 number, since 3×55101506550³ (a number of 33 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6329157 + ... + 6337856.

It is an arithmetic number, because the mean of its divisors is an integer number (2945080755).

Almost surely, 2^55101506550 is an apocalyptic number.

55101506550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55101506550 is an abundant number, since it is smaller than the sum of its proper divisors (86262369690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55101506550 is a wasteful number, since it uses less digits than its factorization.

55101506550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12667057 (or 12667052 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 33.

The spelling of 55101506550 in words is "fifty-five billion, one hundred one million, five hundred six thousand, five hundred fifty".